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Winthrop Jetty Surf Forecast
/ Massachusetts (29 breaks) / Massachusetts (28 breaks) /
Surf Forecasts:
Winthrop Jetty surfForecast / Massachusetts / USA
48hr Weather and Surf, issued 7 pm Saturday 21 Mar 2026 EDTForecast update in hr min s Forecast update imminent
Winthrop Jetty surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Winthrop Jetty sea temperature is
3.6° C
(Which is normal for this time of year)How big are the waves at Winthrop Jetty today?
The current surf forecast for Winthrop Jetty at 12AM is: 0.5m 8s primary swell from a East direction and 0.4m 8s secondary swell from a Southeast direction, 0.4m 3s secondary swell from a North-northeast direction (forecast issued at 07:00pm March 21). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Mar) | 1ft (0.3m) | 7s |
| Afternoon (22 Mar) | 2.5ft (0.7m) | 5s |
| Evening (22 Mar) | 2ft (0.6m) | 6s |
Table - waves today at Winthrop Jetty. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 7 | 7 | 4 | 5 | 5 | 6 | 7 | 8 | 4 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 33 | 31 | 30 | 18 | 9 | 9 | 9 | 21 | 27 | 22 | 27 | 25 | 36 | 87 | 154 | 220 | 396 | 269 | 242 | 248 | 418 | 323 | 270 | 217 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | on | cross- on | cross- on | cross | cross- off | cross- off | glass | cross | cross | cross- on | cross | cross | cross | cross- on | cross- on | cross- off | cross- off | cross- off | cross | cross | cross- on |
High Tide / height (m) | 2:00AM 3.29 | 2:33PM 2.97 | 2:47AM 3.27 | 3:24PM 2.85 | 3:38AM 3.19 | |||||||||||||||||||
Low Tide / height (m) | 7:50PM -0.15 | 8:22AM -0.33 | 8:36PM -0.07 | 9:12AM -0.26 | 9:26PM 0.05 | 10:08AM -0.13 | ||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - |
| Sunset | 6:55 | - | - | - | - | - | - | - | 6:57 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - |
 |  | |  | |  | |  | | |  |  | | | | | | |  | | |  | |  | |
Rain (mm) | - | - | - | - | - | - | - | 2 | 4 | - | 4 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 8 | 5 | 3 | 2 | 2 | 3 | 4 | 6 | 8 | 8 | 4 | 1 | 2 | 0 | 0 | 2 | 2 | 1 | 0 | -1 | -2 | -1 | 0 | 2 |
| Feels °C (?) | 1 | -1 | -2 | -2 | -2 | -2 | -2 | 0 | 5 | 7 | -1 | -6 | -5 | -7 | -7 | -5 | -3 | -3 | -5 | -7 | -8 | -6 | -4 | -2 |
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Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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